Yahoo to require Yahoo ID; no more Facebook or Google logins

Yahoo has begun the gradual phase-out of letting people access certain services with their Facebook or Google logins. Now, to sign into all services, users will need a Yahoo ID.

The first service to stop allowing other login credentials was Yahoo Sports Tourney Pick'Em up; and soon services like Flickr and Fantasy Sports will also require a Yahoo ID.

"Yahoo is continually working on improving the user experience, which includes our sign-in process for Yahoo Sports Tourney Pick'Em," a Yahoo spokesperson told CNET. "This new process, which now asks users to sign in with a Yahoo username, will allow us to offer the best personalized experience to everyone."

Since Mayer took the helm in 2012, she has refreshed Yahoo Mail and Yahoo Finance, and launched Yahoo News Digest. Just in the last year, Yahoo has acquired 30 companies, prettified several apps, launched new "magazines" for food and tech, bulked up Tumblr, and made high profile hires like anchor Katie Couric.